Portable toilet seat



FIG. 1 is a perspective view of a portable toilet seat showing my new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a back elevation view thereof;

FIG. 4 is a right-side elevation view thereof;

FIG. 5 is a left-side elevation view thereof;

FIG. 6 is a top plan view of the toilet seat thereof shown separately for the clarity of illustration;

FIG. 7 is a bottom plan view of the portable toilet seat shown in FIG. 1;

FIG. 8 is an exploded plan view thereof;

FIG. 9 is a partial exploded perspective view thereof;

FIG. 10 is perspective view thereof shown without the lid; and,

FIG. 11 is a top plan view of the lid shown separately for clarity of illustration.

The broken lines are for the purpose of illustrating portions of the article that form no part of the claim. 

CLAIM I claim the ornamental design for a portable toilet seat, as shown and described. 